I cant seem to change the curve width in the print display

[kareem_zarka]

I cant seem to change the curve width in the print display

[Japhy]

If you are in Rhino 6 or greater can you type SystemInfo in the command line and return the results here please? Thanks.

[John_Brock]

It works fine here.
V7 SR 22
2019 MBP Monterey 12.5.1

Set print width in Layer panel
Turned on PrintDisplay with a thickness factor of 40.